<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
登陆页面
<form action="/kk/loginin" method="post">
    用户名:<input name="username" value=""/>
    密码:<input name="password" value=""/>
    <button type="submit">提交</button>
</form>
</body>
</html>